appointments_update_special_instructions

A write tool on the ServiceTitan MCP server.

SERVERServiceTitan MCP Server SOURCEjordandalton/servicetitanmcpserver

Medium RISK CLASS

Category Write

Parameters 00 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/jordandalton-servicetitanmcpserver/appointments-update-special-instructions.md

WHAT IT DOES

What appointments_update_special_instructions does on ServiceTitan MCP Server

AI agents use appointments_update_special_instructions to create or update resources in ServiceTitan MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your ServiceTitan MCP Server environment.

RISK

Why appointments_update_special_instructions is rated Medium

The 'update' action modifies appointment records reversibly by updating special instructions—a change that can be undone or modified later. This is a Write category action rather than Destructive (no deletion) or Execute (no arbitrary code execution).

From the tool's definition Tool name 'appointments_update_special_instructions' contains 'update', indicating modification of existing data. The tool operates on the ServiceTitan API which manages service appointments and business operations.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs appointments_update_special_instructions safely

PolicyLayer is an MCP gateway: it sits between your AI agents and ServiceTitan MCP Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For appointments_update_special_instructions, this is the rule to start with:

appointments_update_special_instructions Rate-limited

appointments_update_special_instructions stays usable, but capped: an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "appointments_update_special_instructions": {
      "limits": [
        {
          "counter": "appointments_update_special_instructions_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}

LIMIT THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect ServiceTitan MCP Server, apply this rule, and every appointments_update_special_instructions call is checked against it from then on.

FAQ

Questions about appointments_update_special_instructions

What does the appointments_update_special_instructions tool do? +

appointments_update_special_instructions is a write tool on the ServiceTitan MCP Server MCP server. It is categorised as a Write tool in the ServiceTitan MCP Server MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.

How do I enforce a policy on appointments_update_special_instructions? +

Register the ServiceTitan MCP Server MCP server in PolicyLayer and add a rule for appointments_update_special_instructions: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches ServiceTitan MCP Server. Nothing to install.

What risk level is appointments_update_special_instructions? +

appointments_update_special_instructions is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.

Can I rate-limit appointments_update_special_instructions? +

Yes. Add a rate_limit block to the appointments_update_special_instructions rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block appointments_update_special_instructions completely? +

Set action: deny in the PolicyLayer policy for appointments_update_special_instructions. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides appointments_update_special_instructions? +

appointments_update_special_instructions is provided by the ServiceTitan MCP Server MCP server (jordandalton/servicetitanmcpserver). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

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